<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@page import="java.util.Map"%>
<%@page import="java.io.Writer"%>

<%!
private void write(Map<String, Object> map, Writer writer) {
    
}

private <K> Map<K, Object> group(Map<String, Object>[] maps, Class<K> clazz) {
    Map<K, Object> group = new HashMap<K, Object>(0);
    for (Map<K, Object> m : maps) {
        List<Map<String, Object>> list = group.get(clazz);
    }
    return null;
}
%>